Improvement in top-rolls for spinning



ich %taic Y l section.

WILLIAM A. CASWELL, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO HIMSELF, ALBERT F. ALLEN, AND WILLIAM D. HILTON, OF SAME PLACE.

' Letters vPatent No. 113,140, dated'March 28, 1871.

IMPROVEMENT IN TOP-ROLLS VFOR SPINNING, dac.

l The Schedule referred to In these Letters Patent and maldng part of the same.

To all whom it may concern Be it known that I, WILLIAM A. OASWELL, of the city and county of Providence, in the State of Rhode Island, have invented certain new aud useful' Iruprovements in the Construction of Top-Rolls for Spinmug.

My invention consists in certain novel combinations of textile fabric, cork, and leather' attached to the roll.

And I do hereby declare that the following specification, taken in connection with the drawing furnished andl forming a part of the same, is a true, clear, and exact description thereof.

Referring to the drawing- Figure4 1 represents .one of my rolls in perspective.

Figure 2 represents the samewith portions of the coveringr removed.

Figur/e 3 represents the perfect roll in cross vertical A represents the metallic roll.

Bis the foundation of textile fabric. It consists, in this instance, of a layer of cotton or other braid wound spirally around the roll from end to end, with the edges of the fabric adjacent to each other, but not too close to prevent the yadhesive cement usually employed from entering the intervening spaces.

C is a layer of cork-wood cut in a thin sheet, and

applied after the manner of leather by means of ad hesive cement.

D is the exterior or surface clothing, of leather,

suitable for the purpose, applied in the usual manner. A roll thus constructed possesses a peculiarly valuable degree of elasticity, which greatly contributes to its general eciency and durability.

I am aware that strips of cloth wound spirally have heretofore been employed as foundation for top rolls tion of textile fabric, an intermediate layer 'of cork, and an exterior covering of leather, substantially as described.

` WM. A. CASWELL.

Witnesses:

HENRY MARTIN, JOHN O. PURKIS. 

